查询词典 low-lying area

The Ship Maintenance Department have owned an amount of experiential and professional engineers who were approved many times by ship owners and agents as their high quality, low price and humanistic service. Marine Enginnering Department have carried on many large projects in Yantai Raffles Shipyard Ltd and Yantai Refloatation Shipyard. Because we attach importance to the quality and plan, the eligibility is always 90% at least per time. The Manufactory has near upon 1000m3 area and more than 10 sets of machines which can make many kinds of machinery parts and steel structures.

修船部拥有一支业务素质高，技术丰富，规模庞大的专业航修队伍，多年来为到港的中、外国际航行船舶进行了大量的维修，他们对我们的＂优质、低价、高效、人性化服务＂极其赞赏；工程部在烟台莱佛士造船有限公司，烟台打捞局船厂等单位承接了多个大型项目，因狠抓质量、注重细节、计划合理，一次报验合格率答都达到了90％以上；生产中心拥有近千平方米的厂房，数十台大中小型加工设备，可以加工多种机械部件和钢结构。

The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.

数值模拟结果表明，(1)在涡轮达到工作转速时，在分级区域形成了一个与涡轮旋转方向相反的局部回流涡，它使得分离出来的细粒重又被带回分级轮外边缘，从而严重影响分级机的分级效率；(2)粉尘粒子在涡轮低速运动情况下，基本上能跟随气体运动，但随着转速加大，两相之间出现了明显的速度滑移现象；(3)分级机工作时的风量也是一个比较重要的操作参数，它可以直接影响到分级机内腔流场的稳定性，风量越大，流场越稳定；(4)同直叶片形状相比较，带后弯导板的叶片，有利于改善流场的稳定性，流场容易形成整体流，对提高分级效率和分级精度都非常有利；(5)粒子轨迹线在涡轮转速较高时十分复杂，有的出现了反复的弹跳现象，大颗粒不能通过分级区域而从进口返流了，只有细小的颗粒才从出口处流出；(6)涡轮转速加大时，粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象，颗粒越小，脉动程度越为剧烈。

Transsphenoidal extracranial rhinological repair has advantages of superior exposure of the sellar area , high rate of success, low morbidity and less complications.

结论这种颅外修补术具有创伤小、并发症少、成功率高的优点，并可同时处理鞍内病变，是修补蝶窦性脑脊液鼻漏的最佳入路。

Located in China's Electric Capital - Salix city, founded in 1993, covers an area of more than 5000 square meters, is a professional engaged in low-voltage electrical research, development, production and sales enterprises.

浙江华洋电器有限公司座落于中国电器之都-柳市，创办于1993年，占地面积5000多平方米，是一家专业从事低压电器研制、开发、生产、销售于一体的企业。

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪（Catalyst Molding Process Analyzer， CMPA）和催化剂力学性质测试仪（Catalyst Mechanical Properties Tester， CMPT），以Fe-Cr系高温变换催化剂片剂为研究对象，对成型过程和受压破碎过程提供了全过程动态研究的新手段；本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素（包含预密致比例、煅烧时间、煅烧温度和石墨含量等）对催化剂成型体强度的影响，并对成型条件进行了优化；根据实验结果，关联确定了固体催化剂成型过程中的密度－压力关系式，并对方程中诸因子的物理意义进行了描述；提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法；研究讨论了成型压力对催化剂成型体强度性质的影响，结果表明：对于催化剂成型体的强度和比表面性质，成型压力存在着一个最佳值，过高的成型压力会导致比表面积和侧压强度的降低；不适当的成型压力的维持时间会破坏&压力回弹&作用，造成催化剂成型体的机械强度明显降低。

Three sites of high, medium and low Selenium status were chosen in the seleniferous area of Enshi and neighboring places.

在恩施高硒及邻近地区选择了高、中及低硒三个试验点，各点间的距离不超过20～30公里。

Big flat lot needs very low maintenance with lot fruit trees, separated garden area and slabbed gated RV parking.

非常低维护与很多果树，庭园区和门控房车停车场，宽敞的车道。

Second, the study determines that there are five sedimentary facies types including fan delta, braided delta, nearshore subaqueous fan, sublacustrine fan and beach bar, according to the identification of facies marks as well as comprehensive analyses of the content of conglomerate and sandstone, sandstone thickness, mudstone color, detrital composition and other data of Shahejie Formation in the western beach area of Liaohe Basin. There are three main provenance areas consisted of western uplifting, Huludao uplifting and central low uplifting.

通过相标志的识别以及对砾岩含量、砂岩含量、砂岩厚度、泥岩颜色及碎屑组分等资料的综合分析，确定了滩海西部地区沙河街组主要发育扇三角洲、辫状河三角洲、近岸水下扇、湖底扇和滩坝五种储层沉积相类型，并存在西部凸起、葫芦岛凸起和中央低凸起三个主要的物源区。

Middle and less dose suppling of Ginkgo biloba cause low expression of c-fos in each area of hypothalamus but for dentate gyrus.

大鼠给予银杏叶片后，炎性致痛大鼠海马区及下丘脑区的c-fos揭示了银杏叶片在疼痛大鼠的中枢神经系统对c-fos有一定的影响作用。

It was a bright start from both sides and Dida had to move smartly off his line early on to gather a through-ball aimed at Obafemi Martins but Milan almost opened the scoring on five minutes when Rui Costa burst into the area but goalkeeper Francesco Toldo used his legs to save the low shot.

双方的开场都有机会，国际米兰的直传球迫使迪达迅速出击，赶在奥巴非米。马丁斯之前抱住皮球。而米兰差一点在第5分钟就获得进球，鲁伊。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。